Abstract #3970

Detection of Lipids in Various Tissues in Calf in One Measurement by 2D CSI with FID and Long Echo Time Acquisition at 7T

Ivica Just Kukurov¹,², Ladislav Valkovic¹,³, Martin Gajdosik¹, Martin Krssk⁴, Stephan Gruber¹, Tibor Liptaj², Siegfried Trattnig¹, Marek Chmelk¹

¹MR Centre of Excellence, Department of Radiology, Medical University of Vienna, Vienna, Austria; ²Department of NMR and MS, Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, Slovakia; ³Department of Imaging Methods, Institute of Measurement Science, Slovak Academy of Sciences, Bratislava, Slovakia; ⁴Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria

The study aim was to simultaneously assess the composition of fatty acids from the extramyocellular lipids, bone marrow and subcutaneous adipose tissue in the calf at 7T and analyze their saturation profiles. Right calf of four volunteers was scanned using a 2D-CSI sequence with FID and long echo-time acquisition. Ratios of unsaturated fatty-acids (UFA) to CH3 group, polyunsaturated fatty-acids (PUFA) to CH3 group, and PUFA to UFA+PUFA were calculated in: subcutaneous fat, bone marrow and calf muscles. The new 2D-CSI sequence was found suitable for detecting lipids in various tissues for their composition analysis with no extra time needed.